I would definitively subscribe to limit your luggage to a carry on only. Struggling with a mountain of bags is like dragging around your personal ball and chain. Also asking people for directions, starting conversations and dressing accordingly to the custom is huge. Flashy or provocative clothing will only isolate you and that is not what traveling is about. Lastly be humble. We make the mistake to judge everything by our own cultural standards. Especially Europeans and Americans are prone to that mistake. Just an example people, take note that it is not the one who is shouting the loudest that is right and will earn respect. There is a wealth of wisdom to be learned by taking ourselves a step back and observing open minded. I have learned to enjoy and admire the quiet voices that are full of strength and serenity.